[Bug other/15194] [3.3 Regression] Fastjar configure needlessly fails without long long

["kcook at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From kcook at gcc dot gnu dot org  2004-07-07 17:53 -------
Subject: [bug bootstrap/15194] [3.3] Fastjar configure fails on build compilers
 without long long

Due to the fact that GCC 3.3's fastjar still used autoconf 2.13, I think 
using Jones idea is more prudent than a backport from 3.4.

When examining fastjar's use of SIZEOF_* macros we can always safely set 
the size to zero if it doesn't exist which makes the changes even 
simpler and less risky for 3.3.5.

Tested by building fastjar on i686-pc-cygwin which resulted in no 
changes compared to previous the patch.

Then I reconfigured and built with CFLAGS="-O2 -pedantic-errors" which 
after this patch sets SIZEOF_LONG_LONG=0.  Prior to the patch it would 
error out.

Gaby (or anyone else), would this be OK for 3.3?  This bug is a 
regression from 3.2.
2004-07-07  Jones Desougi <jones@ingate.com>
            Kelley Cook <kcook@gcc.gnu.org>

	PR bootstrap/15194
	* acinclude.m4 (gcc_AC_COMPILE_CHECK_SIZEOF): Return 0 when type
	doesn't exist.
	* aclocal.m4: Regenerate.
	* configure: Regenearate.

diff -prud ../fastjar.orig/acinclude.m4 ./acinclude.m4
--- ../fastjar.orig/acinclude.m4	2002-09-09 17:19:16.000000000 -0400
+++ ./acinclude.m4	2004-07-07 13:14:45.387812200 -0400
@@ -1,6 +1,7 @@
 
 dnl Host type sizes probe.
 dnl By Kaveh R. Ghazi.  One typo fixed since.
+dnl Modified to return a size of 0 if type doesn't exist
 dnl
 AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF],
 [changequote(<<, >>)dnl
@@ -20,7 +21,7 @@ $2
 done
 ])
 if test x$AC_CV_NAME = x ; then
-  AC_MSG_ERROR([cannot determine a size for $1])
+  AC_CV_NAME=0
 fi
 AC_MSG_RESULT($AC_CV_NAME)
 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
diff -prud ../fastjar.orig/aclocal.m4 ./aclocal.m4
--- ../fastjar.orig/aclocal.m4	2004-06-30 18:53:03.000000000 -0400
+++ ./aclocal.m4	2004-07-07 13:13:19.967539200 -0400
@@ -13,6 +13,7 @@ dnl PARTICULAR PURPOSE.
 
 dnl Host type sizes probe.
 dnl By Kaveh R. Ghazi.  One typo fixed since.
+dnl Modified to return a size of 0 if type doesn't exist
 dnl
 AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF],
 [changequote(<<, >>)dnl
@@ -32,7 +33,7 @@ $2
 done
 ])
 if test x$AC_CV_NAME = x ; then
-  AC_MSG_ERROR([cannot determine a size for $1])
+  AC_CV_NAME=0
 fi
 AC_MSG_RESULT($AC_CV_NAME)
 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
diff -prud ../fastjar.orig/configure ./configure
--- ../fastjar.orig/configure	2004-06-30 18:53:03.000000000 -0400
+++ ./configure	2004-07-07 13:24:32.644678500 -0400
@@ -1876,7 +1876,7 @@ done
 fi
 
 if test x$ac_cv_sizeof_char = x ; then
-  { echo "configure: error: cannot determine a size for char" 1>&2; exit 1; }
+  ac_cv_sizeof_char=0
 fi
 echo "$ac_t""$ac_cv_sizeof_char" 1>&6
 cat >> confdefs.h <<EOF
@@ -1915,7 +1915,7 @@ done
 fi
 
 if test x$ac_cv_sizeof_short = x ; then
-  { echo "configure: error: cannot determine a size for short" 1>&2; exit 1; }
+  ac_cv_sizeof_short=0
 fi
 echo "$ac_t""$ac_cv_sizeof_short" 1>&6
 cat >> confdefs.h <<EOF
@@ -1954,7 +1954,7 @@ done
 fi
 
 if test x$ac_cv_sizeof_int = x ; then
-  { echo "configure: error: cannot determine a size for int" 1>&2; exit 1; }
+  ac_cv_sizeof_int=0 
 fi
 echo "$ac_t""$ac_cv_sizeof_int" 1>&6
 cat >> confdefs.h <<EOF
@@ -1993,7 +1993,7 @@ done
 fi
 
 if test x$ac_cv_sizeof_long = x ; then
-  { echo "configure: error: cannot determine a size for long" 1>&2; exit 1; }
+  ac_cv_sizeof_long=0 
 fi
 echo "$ac_t""$ac_cv_sizeof_long" 1>&6
 cat >> confdefs.h <<EOF
@@ -2032,7 +2032,7 @@ done
 fi
 
 if test x$ac_cv_sizeof_long_long = x ; then
-  { echo "configure: error: cannot determine a size for long long" 1>&2; exit 1; }
+  ac_cv_sizeof_long_long=0 
 fi
 echo "$ac_t""$ac_cv_sizeof_long_long" 1>&6
 cat >> confdefs.h <<EOF


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15194